2N8A

1H, 13C and 15N chemical shift assignments and solution structure for PARP-1 F1F2 domains in complex with a DNA single-strand break


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 78 
  • Conformers Submitted: 78 
  • Selection Criteria: Total, Tensor and NOE xplor energies simultaneously below thresholds (6000, 1500 and 2 kcal.mol-1 respectively) 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural Basis of Detection and Signaling of DNA Single-Strand Breaks by Human PARP-1.

Eustermann, S.Wu, W.F.Langelier, M.F.Yang, J.C.Easton, L.E.Riccio, A.A.Pascal, J.M.Neuhaus, D.

(2015) Mol.Cell 60: 742-754

  • DOI: 10.1016/j.molcel.2015.10.032

  • PubMed Abstract: 
  • Poly(ADP-ribose)polymerase 1 (PARP-1) is a key eukaryotic stress sensor that responds in seconds to DNA single-strand breaks (SSBs), the most frequent genomic damage. A burst of poly(ADP-ribose) synthesis initiates DNA damage response, whereas PARP-1 ...

    Poly(ADP-ribose)polymerase 1 (PARP-1) is a key eukaryotic stress sensor that responds in seconds to DNA single-strand breaks (SSBs), the most frequent genomic damage. A burst of poly(ADP-ribose) synthesis initiates DNA damage response, whereas PARP-1 inhibition kills BRCA-deficient tumor cells selectively, providing the first anti-cancer therapy based on synthetic lethality. However, the mechanism underlying PARP-1's function remained obscure; inherent dynamics of SSBs and PARP-1's multi-domain architecture hindered structural studies. Here we reveal the structural basis of SSB detection and how multi-domain folding underlies the allosteric switch that determines PARP-1's signaling response. Two flexibly linked N-terminal zinc fingers recognize the extreme deformability of SSBs and drive co-operative, stepwise self-assembly of remaining PARP-1 domains to control the activity of the C-terminal catalytic domain. Automodification in cis explains the subsequent release of monomeric PARP-1 from DNA, allowing repair and replication to proceed. Our results provide a molecular framework for understanding PARP inhibitor action and, more generally, allosteric control of dynamic, multi-domain proteins.


    Organizational Affiliation

    Medical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Poly [ADP-ribose] polymerase 1
A
214Homo sapiensMutation(s): 0 
Gene Names: PARP1 (ADPRT, PPOL)
EC: 2.4.2.30
Find proteins for P09874 (Homo sapiens)
Go to Gene View: PARP1
Go to UniProtKB:  P09874
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (45-MER)B45N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 78 
  • Conformers Submitted: 78 
  • Selection Criteria: Total, Tensor and NOE xplor energies simultaneously below thresholds (6000, 1500 and 2 kcal.mol-1 respectively) 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-12-02
    Type: Initial release
  • Version 1.1: 2015-12-23
    Type: Database references
  • Version 1.2: 2016-10-05
    Type: Structure summary
  • Version 1.3: 2016-10-19
    Type: Other